COGENT COMMUNICATIONS HOLDINGS, INC. reports

Company location: Washington, DC
Fiscal year end: 31 December

COGENT COMMUNICATIONS HOLDINGS, INC. has filed 2,541 SEC EDGAR filings since 29 Aug 2001

Filter by type:
10-K
10-Q
8-K
SC13D
SC13G

SEC filing history

Showing 126-150 of 1,000 matching filings.

Per page

Current page

144 File 000-51829

144 filing

Filing date: 13 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 13 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 12 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 12 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 12 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 12 Jun 2025
Reporting date: 11 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 11 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 11 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 10 Jun 2025
Reporting date: 10 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 10 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 10 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 09 Jun 2025
Reporting date: 09 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 09 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 09 Jun 2025
Reporting date: 09 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 09 Jun 2025
Reporting date: 06 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 09 Jun 2025
Reporting date: 06 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

4/A filing

Filing date: 09 Jun 2025
Reporting date: 01 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 09 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 09 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 09 Jun 2025
Reporting date: 05 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 06 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 06 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 06 Jun 2025
Reporting date: 04 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4 filing

Filing date: 05 Jun 2025
Reporting date: 04 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 05 Jun 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing